Finding the Fourth Proportional to 436,109.25, 654,164.04 and 136,613.10

Step by Step Solution

1. Step 1: Write the proportion equation
   436,109.25 : 654,164.04 = 136,613.10 : x
2. Step 2: Convert to fraction form
   436,109.25/654,164.04 = 136,613.10/x
3. Step 3: Cross multiply
   436,109.25x = 654,164.04 × 136,613.10
4. Step 4: Simplify right side
   436,109.25x = 89,367,380,378.34
5. Step 5: Solve for x
   x = 89,367,380,378.34/436,109.25
6. Step 6: Final answer
   x = 204,919.71